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First you have to locate the navigation DVD player itself. The navigation system DVD players are either under the front seats or behind the navigation screen. All you have to do to update the GPS system is remove the old GPS disc and insert the new GPS disc. The NAV system will update itself. About the only thing you may have to do is reset the region the Navigation system shows. Most of the time you dont have to do anything. It will do all the updates itself.
System Requirements | Download for Mac. Garmin Express is not compatible with your operating system. You must upgrade your OS to use Garmin Express, or you can use legacy software called Map Updater to update maps on automotive devices.urn your device on, and connect it to your computer with a USB cable. Or, if your device came with an ANT Stick, turn your device on, and plug the ANT Stick into your computer's USB port.